THINCRUST
MITRE ATT&CK: S1223 View on attack.mitre.org
Aliases: THINCRUST
- First seen
- 2023-01-01 00:00:00
- Malware type
- backdoor
- Family
- Malware family
- Operating systems
- network-devices
- Profile updated
- 2026-07-07 13:06:01
Targeted industries: government-and-public-sector technology-and-telecommunications
Targeted regions: country_code:us country_code:cn
Context
THINCRUST is a Python-based backdoor tool that has been used by UNC3886 since at least 2023.
Detection coverage
- 56 Sigma rules
Malware & tools used
- Disable or Modify System Firewall (attack-pattern)
- Web Protocols (attack-pattern)
- Symmetric Cryptography (attack-pattern)
- Python (attack-pattern)
- Deobfuscate/Decode Files or Information (attack-pattern)
Used by threat actors
- UNC3886 (threat-actor)
Reports & references
- Mandiant — Fortinet Malware Ecosystem (report)
- MITRE ATT&CK — S1223 (report)